小程序消息推送问题总结-即速应用

微信小程序推送乱码问题

2018-09-08 今天在做微信消息推送时，消息内容乱码，如下图：

首先，想到的是idea的编码方式，在file–setting–editor–file encodings下下拉框均选择utf-8

其次，想到的是string字符串转码问题，通过new String(str.getBytes(“gbk”),“UTF-8”);在微信上显示的变为了问号。???
然后，猜测会不会是在拼接url时中文编码问题，于是使用URLEncoder.encode(“内容”);在微信上显示的变为了各种百分号。。。。
最后，在百度上搜索“微信消息推送乱码”，参考：java微信客服接口-发消息中文乱码成功解决问题

将原有代码 pw = new PrintWriter(connection.getOutputStream());
改为

OutputStreamWriter outWriter = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");    pw = new PrintWriter(outWriter);

全部代码如下：

String result = "";PrintWriter pw = null;BufferedReader br = null;try {    URL realUrl = new URL(requestUrl);    HttpsURLConnection connection = (HttpsURLConnection)realUrl.openConnection();    connection.setDoOutput(true);    connection.setDoInput(true);    connection.setRequestMethod("POST");    connection.setRequestProperty("content-type", "application/x-www-form-urlencoded");    // 获取URLConnection对象对应的输出流    OutputStreamWriter outWriter = new OutputStreamWriter(connection.getOutputStream(), "UTF-8");    pw = new PrintWriter(outWriter);    // 发送请求参数    pw.print(param);    // flush输出流的缓冲    pw.flush();    // 建立实际的连接    connection.connect();    br = new BufferedReader(new InputStreamReader(            connection.getInputStream()));    String line;    while ((line = br.readLine()) != null) {        result += line;    }} catch (Exception e) {    e.printStackTrace();}// 使用finally块来关闭输入流finally {    try {        if (br != null) {            br.close();        }    } catch (Exception e) {        e.printStackTrace();    }}

微信小程序推送报错

javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: timestamp check failed        at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)        at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1949)        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:302)        at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:296)        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1509)        at sun.security.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:216)        at sun.security.ssl.Handshaker.processLoop(Handshaker.java:979)        at sun.security.ssl.Handshaker.process_record(Handshaker.java:914)        at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1062)        at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1375)        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1403)        at sun.security.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1387)        at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:559)        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:185)        at sun.net.www.protocol.https.HttpsURLConnectionImpl.connect(HttpsURLConnectionImpl.java:153)        at cn.wyc.web.wx.util.UserUtil.getResult(Util.java:62)        at cn.wyc.web.wx.util.UserUtil.getToken(Util.java:39)        at cn.wyc.web.wx.util.TokenUtil.run(TokenUtil.java:13)        at java.lang.Thread.run(Thread.java:745)Caused by: sun.security.validator.ValidatorException: PKIX path validation failed: java.security.cert.CertPathValidatorException: timestamp check failed        at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:352)        at sun.security.validator.PKIXValidator.engineValidate(PKIXValidator.java:249)        at sun.security.validator.Validator.validate(Validator.java:260)        at sun.security.ssl.X509TrustManagerImpl.validate(X509TrustManagerImpl.java:324)        at sun.security.ssl.X509TrustManagerImpl.checkTrusted(X509TrustManagerImpl.java:229)        at sun.security.ssl.X509TrustManagerImpl.checkServerTrusted(X509TrustManagerImpl.java:124)        at sun.security.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:1491)        ... 14 moreCaused by: java.security.cert.CertPathValidatorException: timestamp check failed        at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:135)        at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:219)        at sun.security.provider.certpath.PKIXCertPathValidator.validate(PKIXCertPathValidator.java:140)        at sun.security.provider.certpath.PKIXCertPathValidator.engineValidate(PKIXCertPathValidator.java:79)        at java.security.cert.CertPathValidator.validate(CertPathValidator.java:292)        at sun.security.validator.PKIXValidator.doValidate(PKIXValidator.java:347)        ... 20 moreCaused by: java.security.cert.CertificateExpiredException: NotAfter: Fri Feb 15 20:00:00 HKT 2019        at sun.security.x509.CertificateValidity.valid(CertificateValidity.java:274)        at sun.security.x509.X509CertImpl.checkValidity(X509CertImpl.java:629)        at sun.security.provider.certpath.BasicChecker.verifyTimestamp(BasicChecker.java:190)        at sun.security.provider.certpath.BasicChecker.check(BasicChecker.java:144)        at sun.security.provider.certpath.PKIXMasterCertPathValidator.validate(PKIXMasterCertPathValidator.java:125)        ... 25 moreException in thread "Thread-11" java.lang.NullPointerException        at cn.wyc.web.wx.util.UserUtil.getToken(Util.java:41)        at cn.wyc.web.wx.util.TokenUtil.run(TokenUtil.java:13)        at java.lang.Thread.run(Thread.java:745)

此错误表示验证失败及时间戳问题，在本地尝试多次没问题，发现是服务器时间的问题，显示为了2019年，修改时间解决问题

查看和修改Linux的时间1. 查看时间和日期
命令： “date”

2.设置时间和日期
例如：将系统日期设定成2009年11月3日的命令
命令： “date -s 11/03/2009”
将系统时间设定成下午5点55分55秒的命令
命令： “date -s 17:55:55”

date
显示当前时间 Fri Aug 3 14:15:16 CST 2007

date -s
按字符串方式修改时间
可以只修改日期,不修改时间,输入: date -s 2007-08-03
只修改时间,输入:date -s 14:15:00
同时修改日期时间,注意要加双引号,日期与时间之间有一空格,输入:date -s “2007-08-03 14:15:00”

修改完后,需要的话可以输入:clock -w
把系统时间写入CMOS